| Houma to Devnya | 6,068.64 mi (9,766.54 km) |
| Houma to Dimitrovgrad | 6,042.40 mi (9,724.31 km) |
| Houma to Dobrich | 6,063.33 mi (9,757.99 km) |
| Houma to Dospat | 6,001.58 mi (9,658.61 km) |
| Houma to Dupnitsa | 5,932.99 mi (9,548.22 km) |
| Houma to Elhovo | 6,075.83 mi (9,778.10 km) |
| Houma to Etropole | 5,944.82 mi (9,567.27 km) |
| Houma to Gabrovo | 5,996.57 mi (9,650.55 km) |
| Houma to Gorna Oryahovitsa | 5,999.56 mi (9,655.35 km) |
| Houma to Gotse Delchev | 5,987.37 mi (9,635.75 km) |
| Houma to Harmanli | 6,059.46 mi (9,751.76 km) |
| Houma to Haskovo | 6,046.11 mi (9,730.27 km) |
| Houma to Ihtiman | 5,954.11 mi (9,582.21 km) |
| Houma to Isperih | 6,018.28 mi (9,685.48 km) |
| Houma to Kardzhali | 6,050.28 mi (9,736.99 km) |
